Firewall

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==External links== ==External links==
*[http://blog.eukhost.com/webhosting/firewall/ Firewall] Very short: Purpose and processes. *[http://blog.eukhost.com/webhosting/firewall/ Firewall] Very short: Purpose and processes.
 +*[http://www.sns.ias.edu/~jns/wp/category/linux/unix-security/iptables/ sns.ias.edu: Iptables]
 +**[http://www.sns.ias.edu/~jns/files/iptables_talk/t1.htm IPTABLES - An Overview]
*[[wikipedia:Netfilter]] *[[wikipedia:Netfilter]]
 +**[http://www.netfilter.org/documentation/ netfilter.org: Documentation about the netfilter/iptables project], [http://lists.netfilter.org/pipermail/netfilter/ lists]
 +**[http://people.netfilter.org/kadlec/nftest.pdf people.netfilter.org: Netfilter Performance Testing]
*[http://www.interhack.net/pubs/fwfaq/ interhack.net: Internet Firewalls: Frequently Asked Questions] Good. *[http://www.interhack.net/pubs/fwfaq/ interhack.net: Internet Firewalls: Frequently Asked Questions] Good.
 +*Web archive backup (be patient): [http://web.archive.org/web/20040213231735/www.docum.org/stef.coene/qos/kptd/ Kernel Packet Traveling Diagram] Quote: "...On the LARTC mailing list, there was a long discussion about how a packet is handled by the kernel. Finally, there was a post by Leonardo Balliache that I copied onto this page. I hope this helps people to better understand how it all works....", '''Good ASCII drawing of the ethernet/ip packet journey through the Linux Kernel'''. Simplify the drawing for yourself, if you do not use some of the processes.
 +*[http://open-source.arkoon.net/kernel/kernel_net.png Another good drawing of the ethernet/ip packet journey through the Linux Kernel with some actions written]
 +*[http://www.frozentux.net/documents/iptables-tutorial/ Iptables-tutorial] - e.g. on-line:
 +**[http://www.frozentux.net/iptables-tutorial/iptables-tutorial.html Iptables Tutorial, Oskar Andreasson] Good and very thorough.
 +*[http://www.frozentux.net/documents/ipsysctl-tutorial/ Ipsysctl-tutorial] - e.g. on-line:
 +**[http://www.frozentux.net/ipsysctl-tutorial/ipsysctl-tutorial.html Ipsysctl tutorial, Oskar Andreasson], Good and very thorough.
*[http://www.sans.org/reading_room/whitepapers/firewalls/ sans.org: SANS InfoSec Reading Room - Firewalls & Perimeter Protection] notably: *[http://www.sans.org/reading_room/whitepapers/firewalls/ sans.org: SANS InfoSec Reading Room - Firewalls & Perimeter Protection] notably:
**[http://www.sans.org/reading_room/whitepapers/firewalls/netfilter-iptables-structural-examination_1392 Netfilter and IPTables: A Structural Examination] Good. **[http://www.sans.org/reading_room/whitepapers/firewalls/netfilter-iptables-structural-examination_1392 Netfilter and IPTables: A Structural Examination] Good.

Revision as of 21:14, 15 May 2010

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